An interruption time reduction scheme with prefetch for hybrid video broadcasting environments
An interruption time reduction scheme with prefetch for hybrid video broadcasting environments
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DOI：
10.1109/wcnc.2011.5779448
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发表时间：
2011-03
期刊：
影响因子：
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通讯作者：
T. Yoshihisa;S. Nishio
中科院分区：
文献类型：
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作者：
T. Yoshihisa;S. Nishio
最近用于数字视频广播的大多数机顶盒都可以连接到互联网。它们可以从广播系统和通信系统接收数据。由于这种混合视频广播环境适合大规模的流媒体传输，因此已经提出了几种减少在混合广播环境中播放视频时发生的中断时间的方案。然而，这些方案不会创建复杂的广播时间表。通过将视频数据分成几个片段并按照有效的播放时间表进行播放，可以进一步减少中断时间。本文针对混合视频广播环境，提出了一种减少中断时间的方案。我们提出的方案利用了基于划分的广播技术。在基于分区的广播技术中，分段被广播，以便客户端可以接收它们，直到播放每个分段。此外，我们还考虑了视频数据的预取。通过这些技术，我们有效地减少了中断时间。我们的模拟实验表明，与传统方案相比，我们提出的方案可以进一步减少中断时间。
Most of the recent set-top boxes for digital video broadcasting can connect to the Internet. They can receive data from broadcast systems and from communication systems. Since such hybrid video broadcasting environments are suitable for large-scale streaming delivery, several schemes to reduce interruption time which occurs while playing video in hybrid broadcasting environments have been proposed. However, these schemes do not create sophisticated broadcast schedules. By dividing video data into several segments and broadcasting them according to an effective broadcast schedule, we can further reduce interruption time. In this paper, we propose an interruption time reduction scheme for hybrid video broadcasting environments. Our proposed scheme exploits the division-based broadcasting technique. In the division-based broadcasting technique, segments are broadcast so that clients can receive them until the time to play each of them. Also, we consider the prefetch of video data. By these techniques, we reduce interruption time effectively. Our simulation experiments revealed that our proposed scheme could reduce interruption time further than conventional schemes.